The support at A prevents rotation and horizontal displacement but permits vertical displacement. The shear plate at B is assumed to act as a hinge. Determine the moment at A and the reactions at C and D, given that X = 3 KN.m. 4 kN X kN·m B 3m3m- 5m+4m- 6 m D The moment at A is KN-m, and the direction is (Click to select) The magnitude of the reaction Cy is [ The magnitude of the reaction Dy is KN, and the direction is (Click to select) KN, and the direction is (Click to select)